Potassium detection in the clear atmosphere of a hot-Jupiter - FORS2 transmission spectroscopy of WASP-17b
E. Sedaghati, H. M. J. Boffin, T. Jeřabková, A. García Muñoz, J. L. Grenfell, A. Smette, V. D. Ivanov, Sz. Csizmadia, J. Cabrera, P. Kabath, M. Rocchetto and H. Rauer